feat(rulesets): add AsyncAPI v3 support

[jonaslagoni]

Fixes #2559.

Checklist

• Tests added / updated
• Docs added / updated

Does this PR introduce a breaking change?

• Yes
• No

Additional context

Does not update the following rules:

• asyncapi-message-examples
• asyncapi-message-messageId-uniqueness
• asyncapi-operation-operationId-uniqueness
• asyncapi-operation-security
• asyncapi-schema-default (does technically not work correctly, as it does not check default across all schemas i.e. message payloads)
• asyncapi-schema-examples (does technically not work correctly, as it does not check default across all schemas i.e. message payloads)
• asyncapi-payload (require custom function to tune out multi-format schema objects as schemaFormat is no longer part of message)
• asyncapi-payload-default (require custom function to tune out multi-format schema objects as schemaFormat is no longer part of message)
• asyncapi-payload-examples(require custom function to tune out multi-format schema objects as schemaFormat is no longer part of message)
• asyncapi-operation-operationId (No longer relevant)

Limits to rules:

• asyncapi-3-payload-unsupported-schemaFormat - Does not apply for multi-format schemas

[jonaslagoni]

The last CircleCI test are simply timing out, no idea how to fix that.

All ready to be reviewed.

[frankkilcommins]

Looking good so far. Some minor remarks:

• Formats Package:
  • Bump package version to 1.8.0
  • Update deps in consuming packages: functions, ruleset-bundler, rulesets, and core (devDependencies)
• Rulesets Package:
  • Bump package version to 1.21.0